/*
 * Copyright 2017 NAVER Corp.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.navercorp.pinpoint.profiler.monitor;

/**
 * @author Taejin Koo
 */
public class DeadlockMonitorThread {

    private final DeadlockMonitorTask deadlockMonitorTask;
    private final Thread deadlockMonitorThread;

    public DeadlockMonitorThread(DeadlockThreadRegistry deadlockThreadRegistry, long intervalMillis) {
        this.deadlockMonitorTask = new DeadlockMonitorTask(deadlockThreadRegistry, intervalMillis);
        this.deadlockMonitorThread = new Thread(deadlockMonitorTask, "Pinpoint-deadlock-monitor");
        this.deadlockMonitorThread.setDaemon(true);

        // for preload
        deadlockMonitorTask.doTask();
    }

    void start() {
        deadlockMonitorThread.start();
    }

    void stop() {
        deadlockMonitorTask.stop();
        deadlockMonitorThread.interrupt();
    }

}
